8 1/3 * 1 1/5 = 25/3 * 6/5 = 150/15 = 10 lb

Solution:
1. Prime factorization of 32:
32 = 2^5
2. Prime factorization of 48:
48 = 2^4 * 3
LCM = 2^5 * 3 = 32 * 3 = 96

So, the LCM of 32 and 48 is 96

Convert cents to dollars per gallon.
111.5 cents = 111.5 ÷ 100 = $1.115 per gallon
Multiply by the number of gallons.
13.9 × 1.115
Break it down:
13.9 × 1 = 13.9
13.9 × 0.115 = 13.9 × (115 ÷ 1000) = (13.9 × 115) ÷ 1000
Now, 13.9 × 115 = (13.9 × 100) + (13.9 × 15)
= 1390 + 208.5 = 1598.5
1598.5 ÷ 1000 = 1.5985
So, 13.9 × 1.115 = 13.9 + 1.5985 = 15.4985
Round to nearest cent.
15.4985 = $15.50
Correct answer: $15.50

Find the loan amount
Car price = $20,000
Down payment = $4,500
Loan amount = 20,000 - 4,500 = 15,500
Total payments for the loan
Monthly payment = $318.61
Number of months = 72
Total payments = 318.61 × 72 = 22,919.92 22,920
Total amount paid for the car
Total paid = Down payment + Total loan payments
Total paid = 4,500 + 22,920 = 27,420
Extra amount paid over car price
Extra paid = 27,420 - 20,000 = 7,420
Answer: $7,440